Kabushiki Kaisha Kawai Gakki Seisakusho

Kawai Musical Inst. Mfg. Co., Ltd.

K.k. Kawai Gakki Seisakusho

Kabushibi Kaisha Kawai Gakki

Shinya Konishi

Yoshihisa Shimada

Yoshifumi Kira

Toshihide Saito

An auto-play apparatus associated with a keyboard instrument is arranged for generating auto-accompaniment tones such as chord, bass drum lines to have a specific rhythm pattern. When a player determines tone-up of a music piece during a performance, he or she operates an intonation dial (22) arranged on an operation panel (2) or an expression pedal (23). Then, an intonation value representing a tone-up level of the music piece is generated as numerical value information. A corresponding play pattern is read out from an auto-accompaniment pattern ROM (6) according to the intonation value and a rhythm pattern selected in advance upon operation of an operation member of the operation panel (2), thus starting an auto-play operation. Auto-accompaniment pattern data corresponding to the intonation value is programmed to change the play pattern according to a tone-up state of a music piece during the performance of the music piece.

Auto-play apparatus for generation of accompaniment tones with a

A phrase data input/output apparatus for an electronic musical instrument having an external device coupled thereto. The apparatus, upon receipt of key data from a keyboard, selects either a tone generator for generating a single musical tone in agreement with the key data or a phrase playing circuit for generating a specified phrase of multiple musical tones in agreement with the key data. The apparatus includes an instructing circuit for instructing either normal playing or phrase playing of the instrument. An assigning circuit assigns the key data from the keyboard to either the tone generator or to the phrase playing circuit of the instrument, upon receipt of an instruction from said instructing circuit. An output circuit, responsive to said assigning circuit sends to the external device either key data, outputted by the tone generator, or phrase playing control data obtained through a predetermined conversion of said key data from said keyboard and outputted by the phrase playing circuit.

External device phrase data input/output apparatus for an electronic

An electronic musical instrument, which includes an internal tone generator, a local-on play function, which produces musical tones in consonance with tone data generated by the internal tone generator, and a local-off play function, which externally outputs only an MIDI signal without performing tone production in consonance with tone data generated by the internal tone generator. The instrument comprises first tone information storage for, when the local-on play function is selected, storing a channel that corresponds to tone data, which are generated by the internal tone generator, for each of the tone data; tone-on channel assigning circuitry for employing the tone information, which are stored in the first storage, to specify a channel that corresponds to the tone data generated by the internal tone generator; a further tone generator, which is connected to the tone channel assigning circuitry, for producing a musical tone in consonance with the tone data from the tone-on channel assigning circuitry; second tone information storage for, when the local-off play function is selected, successively storing the ON/OFF states of tone data generated by the internal tone generator for each set of the tone data; a local-off tone data control for employing the tone information stored in the second tone information storage to output, as tone data for an MIDI signal, the tone data that is generated by the internal tone generator without performing either tone channel assignment or tone production for the tone data; and a MIDI signal output, which is connected to the tone channel assigning circuitry and the local-off tone data control, for outputting, as MIDI signals, tone data from the tone channel assigning circuitry and tone data from the local-off tone data control.

Electronic musical instrument

A chord information output apparatus according to the present invention includes a keyboard, a key depression information detector, a chord detector for detecting a chord according to key information detected by the key depression information detector, and an internal information output section for sending detected chord information to an external device. The chord information output apparatus detects a chord upon keyboard key depression, and outputs the chord as chord information to an external device. An automatic accompaniment apparatus includes a memory for storing play data, an external information input section for receiving information from an external source, a chord information converter for converting, into chord information, information received from the external information input section, a play data converter for converting play data, read from the memory, corresponding to the chord information converted by the chord information converter, and a tone generator for producing a musical tone based on the play data converted by the play data converter. The automatic accompaniment apparatus receives information from an external device, converts the information into chord information, generates tone information by converting play data read from a memory in accordance with the chord information, and produces a musical tone based on the tone information.

Chord information output apparatus and automatic accompaniment apparatus

An auto-play musical instrument which has external and internal data storages for auto-play data is disclosed. The auto-play data contain a plurality of music piece data for demonstration tones or background tones. A demonstration button is provided to set a mode for playing back one of music pieces with designating a play number of the auto-play data. A play controller is provided to automatically start a chain-play of the music pieces stored in the external and internal storages when a fixed time interval has passed without any designation of the play number after the set of the demonstration mode.

Auto-play musical instrument with a chain-play mode for a plurality of

An auto-play apparatus for an electronic musical instrument generates auto-play tones or auto-accompaniment tones such as melody, chord, bass, and drum tones on the basis of preprogrammed auto-play data. The apparatus includes a detector for detecting note data in the auto-play data. Every time a tone corresponding to note data in the auto-play data is generated, a pre-programmed display sequence of animation patterns advances. Animation display pattern data representing motions of a person or animal are sequentially sent to a display on the basis of the animation display sequence. Every time a tone corresponding to note data in the auto-play data is generated, the display patterns change motion by motion, thus obtaining an animation display.

Auto-play musical instrument with an animation display controlled by

An auto-play electronic musical instrument stores note data of phrase tones for one bar corresponding to each of a plurality of keys of two octaves together with auto-accompaniment pattern data. Every time a key is operated, an adlib play is made by playing back corresponding phrase tones. When a key operation is interrupted during the adlib play, specific phrase tone are repetitively and automatically played back, thereby preventing a play from being interrupted halfway. The electronic musical instrument also stores fixed phrases such as introduction, fill-in, ending phrases, and the like, which are required according to the flow of a play. When one of the fixed phrases is played back by a selection button while the specific phrase is repetitively played back, the repetitive playback operation of the specific phrase is restarted when the playback operation of the fixed phrase ends. As a result, a user can play similar to a professional artist even with one finger in this key-on phrase play mode.

Auto-accompaniment instrument with switched generation of various phrase

A display apparatus for an electronic musical instrument according to the first invention has a display section including multiple indicators provided in association with multiple tone parts, each indicator having multiple LEDs, a register section for reading out lighting time information from a memory which has lighting time information of the LEDs stored, and a counter section for performing a countdown operation in a predetermined time interval with the lighting time information in the register section as an initial value. When generation of a musical tone is instructed, the LEDs of the indicators which are associated with tone parts of the musical tone and whose quantity corresponds to volume information of the musical tone, are lit. When a count value of the counter section reaches zero, one of the LEDs is turned off or on, and the lighting time information in the register section is reset in the counter section to re-start a countdown operation. The tone levels for the individual parts are also displayed. A display apparatus for an electronic musical instrument according to the second invention has a display section including multiple indicators provided in association with multiple tone parts, each indicator having multiple LEDs. At the time of displaying the tone level, the activation/deactivation of the LEDs is controlled display in a first display mode. At the time of displaying the volume level associated with a change in volume, the activation/deactivation of the LEDs is controlled display in a second display mode.

Display apparatus for electronic musical instrument

A device for detecting data of contents of accompaniment for use in an electronic musical instrument in which the detection of data representing contents of a bass accompaniment is effected independently of the detection of data representing contents of a chord accompaniment, by separately providing a first portion for indicating pitches composing a chord to be performed and a second portion for indicating the lowest pitch of a bass accompaniment pattern in a pitch indicating unit and detecting pitches indicated in the second portion. Thus, data representing contents of a bass accompaniment and data representing contents of a chord accompaniment can be separately detected, whereby the electronic musical instrument can perform a bass accompaniment independent of a chord accompaniment, and thus the variety of a performance can be increased. Further, in the device for detecting data of contents of an accompaniment, bit pattern data representing a chord to be performed as an accompaniment is generated by ORing data representing pitches of a predetermined octave-segment which correspond to pitches indicated by the pitch indicating unit in each octave-segment of the first portion, and the chord to be performed is detected by comparing the bit pattern data obtained as a result of the OR operation with bit pattern data corresponding to various chords stored in a memory, by sequentially shifting the bit pattern data obtained as the result of the OR operation, whereby even a chord in an inversion thereof can be easily and accurately detected.

Device for detecting contents of a bass and chord accompaniment

An auto-play musical instrument, which can give a tone-up state of a music piece intended by a player at his or her intended timing is disclosed. When a rotational speed detector (60) detects that a dial (10) is rotated at a speed higher than a predetermined speed, a director (63) directs a pattern selector (65) to select a soft fill-in pattern or a loud fill-in pattern in place of increment/decrement of an intonation value by a value changer (64). An auto-play operation is made based on the selected pattern, thereby sharply changing the tone-up level of play tones.

Auto-play musical instrument with a dial for controlling tone-up level

In an electronic musical instrument for automatically a adding duet note, an apparatus, which can reduce the capacity of a memory for storing data used as a basis for selecting a duet note to be added, is disclosed. A chord depressed at a keyboard is specified by a chord specifying means, and a depressed melody note (highest note) is detected by a note detection device. According to these notes, duet note data, which can be added, is read out from a chord-notes weighting information storage area on the basis of chord constituting notes, and another duet note data, which can be added, is read out from a note weighting information storage area according to a relative note data of the highest note relative to the root note of the chord. These readout duet note data are subjected to a calculation, thus selecting a duet note. Therefore, duet note data corresponding in numbers to chords and relative notes need only be stored in the memory, thus reducing the capacity of the duet note data memory.

Automatic duet tones generation apparatus in an electronic musical

A key depression speed is measured in units of keys of a keyboard of an electronic musical instrument by a counter for counting clock pulses, and the measured value is converted into key touch data. Counters, the number of which is smaller than the total number of keys of the keyboard are used, and one count channel is assigned to two or more keys. When two keys assigned to the same count channel are successively depressed, the initial value of the corresponding count channel is set, so that an error of the measurement values sequentially obtained in correspondence with the key depression speeds of the keys is minimized.

Key touch data generation circuit of an electronic musical instrument

A data selection apparatus for an electronic musical instrument which stores a plurality of kinds of selectable data for generating tones. A selection code is assigned to each data. The code is selected using a selector for performing an incremental operation, and the corresponding selected code is stored in a memory in correspondence with a use frequency. Every time the code is selected, frequency data is updated. One of the stored codes is read out in the order of higher use frequencies, so that corresponding tone generation data can be selected without performing the incremental operation.

Data selection apparatus for electronic musical instrument which

A rhythm play control device for an electronic musical instrument stores the number of operations of a single operator, and includes a memory device and a central processing unit which responds thereto to perform a change of play mode of the instrument.

Growing community of inventors

Hamamatsu, Japan

Shinya Konishi